diff --git a/lib/wasi/Cargo.toml b/lib/wasi/Cargo.toml
index e59b45f96b2..cb9d5033932 100644
--- a/lib/wasi/Cargo.toml
+++ b/lib/wasi/Cargo.toml
@@ -19,6 +19,8 @@ log = "0.4.6"
 byteorder = "1.3.1"
 # hack to get tests to work
 wasmer-singlepass-backend = { path = "../singlepass-backend", version = "0.4.2", optional = true }
+
+[target.'cfg(windows)'.dependencies]
 winapi = "0.3"
 
 [build-dependencies]